Improvement in nail-plate-feeding machines



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JOHN C. GOULD, OF OXFORD, NEW JERSEY.

Specification forming part of Letters Patent N o. 120,190, dated October24, 1871.

To all whom -it may concern:

Be it known that I, JOHN C. GOULD, of Oxford, in the county of Warrenand State of New Jersey, have invented a certain new and usefulImprovement in Nail- Plate Feeding' Machines, of which the following isa speciication:

rIhe said invention relates to self-actin g feeders to nail-makingmachines, such as I have heretofore invented, and for which LettersPatent have been issued. The improvement consists in obtaining the feedby means of a pair of levers, in place of the ordinary fork-springs,that grasp the nipper-rod tightly when moving toward the knives andrelax when moving back, so as to slip the required distan ce for thenext nail.

To enable others skilled in the art to which it appertains to make anduse my invention, I will proceed to describe its construction andoperation with reference to the drawing.

Figure l. is a side View of the apparatus attached to the vibratinglever that carries the nose-piece of a nail-plate feeder. Fig. 2 is atransverse view, showing the edges of the two levers in place of theordinary fork-springs; and Fig. 3 is a top View of the same.

NVhen the vibrating lever a, that carries the nose-piece and plate,moves toward the machine the push-up rod b strikes the frame of themachine or some other permanent object answering the same purpose, andthus pushes the lower end of the fork-levers c and d outward, and theupper ends that grasp "the nipple-rod e are moved toward the machine.The levers c and d are pivoted together at the bottom, and turn togetheron the bolt f at about their centers; but the lever c is loosely fittedon the bolt j', as shown by dotted lines in Figs. l and 2, so that itneed not remain in line with the other as the pair vibrate together. Theaction ofthe spring g is to return the pushup rod and the fork-levers totheir origina-l positions, and in addition to this it also tends tothrow the upper end of the lever e back of the line of d; and as the twoare connected at their upper ends by a stud-bolt, h, fastened to d andpassing' loosely through a slot in c, and carrying a roller, i, thatbears upon the slopingl surface of c, as shown in Fig. 3, theconsequence of the backward motion of o is to cause the two levers toapproximate more closely at their upper ends and tightly clasp thenipper-rod there placed between them. lhe clasping of the nipper-rod bythe motion of the fork-levers, relatively to each other, by means of theinclined surface of the back of o working in connection with the rolleri, as has been described, may be accomplished without the use of theroller, by means of a sliding wedge or a vibrating lever operating likea toggle. Wh en the feed moves forward the greater the resistance thetighter the nipper-rod is held; and in the reverse movement the slippingis-facilitated by the same construction, and also by the spring kfastened to d and working against o, in opposition to the extent of itsadjustment to the action ofthe large springg.

I claim as my invention` The combination of the vibrating lever a, thepush-rod b, the pair of clamps or forks c and d, the latter constructedsubstantially as described, with the bolt h and roller i, as and for thepurpose speciied.

- JOHN C. GOULD.

' Vitnesses:

WM. K. HALL,

NATHAN Lnwrs. (103)

